No problem, we've got 4053 and 9975 to multiply
4053 × 9975 = 9975 × (4053)
+ 9975 × 3 what gives us 29925
+ 9975 × 50 yielding 498750
+ 9975 × 000 yielding 0
+ 9975 × 4000 resulting in 39900000

= 40428675
